1. Format your TF memory card (micro SD / FAT, micro SDHC / FAT32);2. Download GBA ROMs(suggest go to http://www.freeroms.com/gba.htm), decompress and will get xxx.gba named ROMs;3. Open official EZ client to rename or patch those xxx.gba ROMs, send renamed ROMs to your memory card;4. Now you can insert memory card into EZ4 and play games on your console